Y16 blocks the binding of LARG, a DBL-family Rho guanine nucleotide exchange factor, with Rho (Kd = 80 nM). Y16 specifically inhibits LARG catalyzed activation of RhoA and RhoA signaling pathways. Y16 blocks the growth and migration of MCF7 breast cancer cells.
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Rho GTPases, including Rho, Cdc42, Rac and ROP subfamilies, are key signaling molecules in RNA polymerase II (Pol II) transcriptional control. Our prior work has shown that plant ROP and yeast Cdc42 GTPases similarly modulate Ser2 and Ser5 phosphorylation status
Cell death and differentiation, 25(7), 1259-1275 (2018-03-21)
Semaphorin 4C (Sema4C) expression in human breast cancers correlates with poor disease outcome. Surprisingly, upon knock-down of Sema4C or its receptor PlexinB2 in diverse mammary carcinoma cells (but not their normal counterparts), we observed dramatic growth inhibition associated with impairment
Cyclic nucleotides like cAMP modulate cell function via PKA activation and ion channels.
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